[PATCH 17/21] Mapped CCI-001124 to enable_ip6tables, enable_iptables, httpd_servertokens_prod, and httpd_serversignature_off.

Shawn Wells shawn at redhat.com
Tue Jul 3 23:58:13 UTC 2012


On 7/3/12 6:52 PM, Willy Santos wrote:
> CCI-001124 requires preventing discovery of specific system components (or devices) composing a managed interface. Restricting access via iptables can protect the system from port scanners and other types of similar information gathering techniques. In the case of a web server, which could be allowed through iptables, httpd_servertokens_prod and httpd_serversignature_off restrict the information provided to clients.
>
> Signed-off-by: Willy Santos <wsantos at redhat.com>
> ---
>   rhel6/src/input/services/http.xml           |    4 ++--
>   rhel6/src/input/system/network/iptables.xml |    4 ++--
>   2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/rhel6/src/input/services/http.xml b/rhel6/src/input/services/http.xml
> index 4278902..5f40f49 100644
> --- a/rhel6/src/input/services/http.xml
> +++ b/rhel6/src/input/services/http.xml
> @@ -117,7 +117,7 @@ to plan an attack on the given system. This information disclosure should be res
>   </rationale>
>   <ident cce="4474-3" />
>   <oval id="httpd_servertokens_prod" />
> -<ref nist="CM-6, CM-7" />
> +<ref nist="CM-6, CM-7" disa="1124" />
>   </Rule>
>   
>   <Rule id="httpd_serversignature_off">
> @@ -135,7 +135,7 @@ to plan an attack on the given system. This information disclosure should be res
>   </rationale>
>   <ident cce="3756-4" />
>   <oval id="httpd_serversignature_off" />
> -<ref nist="CM-6, CM-7" />
> +<ref nist="CM-6, CM-7" disa="1124" />
>   </Rule>
>   
>   </Group> <!-- <Group id="httpd_restrict_info_leakage"> -->
> diff --git a/rhel6/src/input/system/network/iptables.xml b/rhel6/src/input/system/network/iptables.xml
> index e511c0d..aa30a90 100644
> --- a/rhel6/src/input/system/network/iptables.xml
> +++ b/rhel6/src/input/system/network/iptables.xml
> @@ -79,7 +79,7 @@ capability for IPv6 and ICMPv6.
>   </rationale>
>   <ident cce="4167-3" />
>   <oval id="service_ip6tables_enabled" />
> -<ref nist="CM-6, CM-7" disa="1115,1118,1092,1117,1098,1100,1097,1123"/>
> +<ref nist="CM-6, CM-7" disa="1115,1118,1092,1117,1098,1100,1097,1123,1124"/>
>   </Rule>
>   
>   <Rule id="enable_iptables">
> @@ -95,7 +95,7 @@ capability for IPv4 and ICMP.
>   </rationale>
>   <ident cce="4189-7" />
>   <oval id="service_iptables_enabled" />
> -<ref nist="CM-6, CM-7" disa="1115,1118,1092,27,1117,1098,1100,1097,1123" />
> +<ref nist="CM-6, CM-7" disa="1115,1118,1092,27,1117,1098,1100,1097,1123,1124" />
>   </Rule>
>   </Group><!--<Group id="iptables_activation">-->
>   

Ack

We'll have to remember to disable server signatures for other services 
(e.g. ftp) as we create those profiles


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